Top Definition
a response to someone's statement when they show authority, dominance or certainty in the statement. If they put some emphasis on their statement and want everyone to know that they run the show, you respond with the phrase. It has a sarcastic tone and can abruptly end the conversation at times.
Person 1: I'm gonna win this damn game idiot!

Person 2: Show em Who's Boss Bak!
by Provington555 October 28, 2009

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